now, it is actually time for a preview of weekend's with alex witt. >> hello, melissa. as president obama overseas, he weighs in on the violence in the middle east. chuck todd will join us from bangkok with the details. the iron dome, defense of israel prevented a wider war already? former state department spokesperson will join me to talk about that. the fall of general petraeus. a renewed look at the top military brass. i will talk to kimberly dozier. >>> in the spirit of the holiday, here's what i'm asking. should stores open their doors on thanksgiving day or should everyone get a break? it's been interesting so far the tweets coming in on that, melissa. i'm sure you have an opinion, too. >> thank you, alex. i greatly appreciate it. when we come back, i'll give you my thoughts, actually, about thanksgiving and the sense of guilt we have and i just want to say thanks to everybody out there in nerdland who has been sticking around sticking with us. i know it has been a relatively more sober show than it often is. i hope you will stick with us as we think through the b